unicorn/qemu/target/arm
Peter Maydell 5063ca11ab
target/arm: Check for xPSR mismatch usage faults earlier for v8M
ARM v8M specifies that the INVPC usage fault for mismatched
xPSR exception field and handler mode bit should be checked
before updating the PSR and SP, so that the fault is taken
with the existing stack frame rather than by pushing a new one.
Perform this check in the right place for v8M.

Since v7M specifies in its pseudocode that this usage fault
check should happen later, we have to retain the original
code for that check rather than being able to merge the two.
(The distinction is architecturally visible but only in
very obscure corner cases like attempting an invalid exception
return with an exception frame in read only memory.)

Backports commit 224e0c300a0098fb577a03bd29d774d0769f632a from qemu
2018-03-05 01:39:39 -05:00
..
arm-powerctl.c ARM: Factor out ARM on/off PSCI control functions 2018-03-01 23:31:47 -05:00
arm-powerctl.h ARM: Factor out ARM on/off PSCI control functions 2018-03-01 23:31:47 -05:00
arm_ldst.h Fix Thumb-1 BE32 execution and disassembly. 2018-03-02 00:20:11 -05:00
cpu-qom.h Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
cpu.c target/arm: Clear exclusive monitor on v7M reset, exception entry/exit 2018-03-04 23:08:31 -05:00
cpu.h target/arm: Prepare for CONTROL.SPSEL being nonzero in Handler mode 2018-03-05 01:29:54 -05:00
cpu64.c target-arm: Enable EL2 feature bit on A53 and A57 2018-03-01 23:36:44 -05:00
crypto_helper.c Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
helper-a64.c Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
helper-a64.h Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
helper.c target/arm: Check for xPSR mismatch usage faults earlier for v8M 2018-03-05 01:39:39 -05:00
helper.h target/arm: Implement BXNS, and banked stack pointers 2018-03-04 21:21:23 -05:00
internals.h target/arm: Add and use defines for EXCRET constants 2018-03-04 23:12:37 -05:00
iwmmxt_helper.c Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
kvm-consts.h arm: better stub version for MISMATCH_CHECK 2018-03-02 00:13:45 -05:00
Makefile.objs ARM: Factor out ARM on/off PSCI control functions 2018-03-01 23:31:47 -05:00
neon_helper.c Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
op_addsub.h Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
op_helper.c arm: Fix SMC reporting to EL2 when QEMU provides PSCI 2018-03-05 01:19:22 -05:00
psci.c target/arm/psci.c: If EL2 implemented, start CPUs in EL2 2018-03-01 23:34:57 -05:00
translate-a64.c target/arm: Remove out of date ARM ARM section references in A64 decoder 2018-03-05 01:05:53 -05:00
translate.c target/arm: Implement BXNS, and banked stack pointers 2018-03-04 21:21:23 -05:00
translate.h target/arm: Implement BXNS, and banked stack pointers 2018-03-04 21:21:23 -05:00
unicorn.h Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
unicorn_aarch64.c Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00
unicorn_arm.c Move target-* CPU file into a target/ folder 2018-03-01 22:50:58 -05:00